From 180a77ee99e8b5bc9f4cdb017788deb595968d5f Mon Sep 17 00:00:00 2001
From: "Ethan P." <eth-p+git@hidden.email>
Date: Sat, 6 Apr 2024 17:21:03 -0700
Subject: [PATCH] Add integration tests for merging styles

A huge thanks to @einfachIrgendwer0815 for helping me make sure
these tests work under the MSRV CI job.
---
 tests/integration_tests.rs | 68 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/tests/integration_tests.rs b/tests/integration_tests.rs
index d6009361..8df4327c 100644
--- a/tests/integration_tests.rs
+++ b/tests/integration_tests.rs
@@ -2810,3 +2810,71 @@ fn strip_ansi_auto_does_not_strip_ansi_when_plain_text_by_option() {
 
     assert!(output.contains("\x1B[33mYellow"))
 }
+
+// Tests that style components can be removed with `-component`.
+#[test]
+fn style_components_can_be_removed() {
+    bat()
+        .arg({
+            #[cfg(not(feature = "git"))]
+            {
+                "--style=full,-grid"
+            }
+            #[cfg(feature = "git")]
+            {
+                "--style=full,-grid,-changes"
+            }
+        })
+        .arg("--decorations=always")
+        .arg("--color=never")
+        .write_stdin("test")
+        .assert()
+        .success()
+        .stdout("     STDIN\n     Size: -\n   1 test\n")
+        .stderr("");
+}
+
+// Tests that style components are chosen based on the rightmost `--style` argument.
+#[test]
+fn style_components_can_be_overidden() {
+    bat()
+        .arg("--style=full")
+        .arg("--style=header,numbers")
+        .arg("--decorations=always")
+        .arg("--color=never")
+        .write_stdin("test")
+        .assert()
+        .success()
+        .stdout("     STDIN\n   1 test\n")
+        .stderr("");
+}
+
+// Tests that style components can be merged across multiple `--style` arguments.
+#[test]
+fn style_components_will_merge() {
+    bat()
+        .arg("--style=header,grid")
+        .arg("--style=-grid,+numbers")
+        .arg("--decorations=always")
+        .arg("--color=never")
+        .write_stdin("test")
+        .assert()
+        .success()
+        .stdout("     STDIN\n   1 test\n")
+        .stderr("");
+}
+
+// Tests that style components can be merged with the `BAT_STYLE` environment variable.
+#[test]
+fn style_components_will_merge_with_env_var() {
+    bat()
+        .env("BAT_STYLE", "header,grid")
+        .arg("--style=-grid,+numbers")
+        .arg("--decorations=always")
+        .arg("--color=never")
+        .write_stdin("test")
+        .assert()
+        .success()
+        .stdout("     STDIN\n   1 test\n")
+        .stderr("");
+}